Detachable movable cable-fastening.



w. G. MURRAY. I DETACHABLE MOVABLE CABLE'FASTENING. r

. APPLICATION FILED APR. I, I914.

Patented Feb. 8,1916

I w. M v

0-, WASHINGTON D C )nNIA.

e d Feb. 8, 19inhaving a tooth or;

its end, and the other an" extension 7 proto receive the said he jointbetween the amping device isat r 1n a gen'eral direc' :adius of thefastenierally of ring shape.

which Will resist all I gitudinally' in respect ole, andfthe parts of.te under any strains.

unpi'ng" members 'in ve: 8:. is provided- 7' ngitudmally, so that .iecable by a jump say, the slot is of a leter of the cable and y beappliedto the irmediate of its ends lirection laterally. of

zeve is provided with r near its ends, and iavetwo correspond- 3e borneupon bythe' The sleeve is forced. Lng'members to make he inclines ofsaid nut 12 "screwed onto said clamping menr' red 3 degree of "clamp- .eut will serve as a leeve. I This nutalso" aracter, Fit having, a;

receive the cable so tssedonto this cable intermediate of its ice" isused as a cable 1e clamping members l enlarged end'of the roce ss ofbrooming he device admits the ling of theicable end" 1.

th this enlargement,

red head referred to ie. in which it may be the "clamping sleeve rideears on each h-ends of the sleeve 11 the sleeve. These 1 Y 1bytightening these" 1d against spreading ing from the work- PAT N 0WY'ILLIS GRANT MURRAY, or sANTRANoIsco, CALm DETACI-IABLE MOVABLECABLE-FASTENING.

Specification ef Letters Patent". Pat;

Application filedApril 1', 1914.. "Serial No. 828,793: a

To all whom it may concern:

Be it known that T, TILLIS GRANT More View, citizen of the UnitedStates, re siding at San Francisco, California, have mvented certain newand useful Improvements in Detachable Movable Cable-'Fasten1ngs, of

I which the following is a specification;v

' throughout their grooves to conform sub-- 7 indicated at 3. Thecorrugations, however,

same general helical orspiral form offthe My invention concernsfastening devices for cables, and more partlcularly the type known as ajump on fastening, being designed to be applied to the ends of thecableor at any desired point between its term1- nals, though it willbe'understood' that my, invention is not limited to such use.

The invention consists in the features and combination and arrangementof parts here-' in after described and particularly pointed out in theclaims. p

In the drawlngs Figure l s a side elevation; Fig. 1 is a view showingthe clamping members 1 and 2 in elevation with the sleeve and nutremoved; Fig. 2 is an enlargedde tail of the inner face of one of theclamping members; Fig. 3 is a. plan view of the slotted sleeve; Fig. 3is an end view of Fig.3; Fig. 4 is a plan of the split nut; Fig. 4 is anend view of Fig. 4; Fig. 5 shows a de- 'veloped view along one of thespiral corrugations of the clamping members. V In these drawmgs, 1, 2,mdicate two clamping members which are grooved along.

their meeting faces to receive and clamp the cable. These members arecorrugated stantially to the corrugationsof the cable of the clampingmembers, 'while having'the cable strands, are provided with high and lowpoints or partsso that when thesememhers are clamped to the cable thehigh parts will bite into the cable and thus have a. firmer grip thereonthan would be the case if the spiral grooves or corrugations Were of thesame depth throughout. The high or biting points are-indicated. at 4,,and the grooves between these points curveilengthwise, as indicated inFig. 5; j

The clamping members have atone end a fastening device to receive thecable which is to be attachedto the cable carrying the members clampedthereon, and are also pro-- vided with an enlarged throat to receive thebroomed out speltered end of the cable when used as a cableend; Thisfastening device consists of a hook-shaped portion on one of theclamping members projection 6 at'or nearj'i clamping member has videdwith a socket 8 tooth or projection. T

meeting ends 0f the cl angle to the ends o; tion transverse to the '1ing device, which is ger This will make a" joint strains laterally orlong "to the fastener as a h the ringwill not separa For holding the;cl: place, a clamping sle which is lotted' at 9 lo: it may be appliedtot] on action, that is to 1 width equal to the dia r the sleeve thereforma cable at any point inte by a movement in a o the said cable. This s1two inclines 10,11, at the clamping members 1 ing inclineslO, 11 to]inclines of the sleeve. lengthwise of its clampf its inclines ride ontclamping members by a Q In order to prevent from spreading, I pro edgeofthe slot, at bot adjacent the inclines 'o earsreceive bolts'l6,an up'the sleeve will be he under, the strain result ing of -the inclines ofthe sleeve on those of serving to hold the nut against spreading;

In operating the device the clamping members 1, 2, which are separable,are

placed on the cable at the desired points. The sleeve is then placed onthe cable, the connecting bolts ofcourse having been first removed toallow the cable to pass through a the slot, and moved lengthwise ontothe clamping members; the nut is then applied to the cable, and isthreaded onto the ends of the clamping members, and by turning the nutthe slotted sleeve is forced up to make its inclines press upon theinclines of the clamping members and thus set the clamping members uponthe cable, the points in "the corrugations biting into the cable andmaking a firm connection.

The sleeve is made of one piece. By having the two inclines on eachclamping member disposed at difterent points along the length thereofand by having the sleeve provided with corresponding inclines, theclamping eliect will be distributed through out the clamping members atand between the points where the inclines are located,

and a firm attachment will be secured.

I claim as my invention 1, A cable socket comprising two clampingmembers having exterior inclines and threaded ends, and having theirmeeting faces provided with parallel grooves from end to end, making athroughway for the cable, said grooves being corrugated to fit and gripthe corrugations of the cable, a onepart slotted ,sleeve having aninclined portion to engage the inclines on the clamping members, aslotted nut for pressing said sleeve longitudinally .along the clampingmembers, and a-n attaching device on one or the clamping members,substantially as described. r

2. In combination clamping members grooved longitudinally to receive. acable and corrugated spirally to conform substan tially to the cablecorrugations, said corrugations of the clamping members havingtransversely disposed high parts to bite into the cable, and a clampingsleeve and nut to press the clamping members together, substantially asdescribed. r

3. In combinationin a cablesocket, a pair of clamping members to engagea cable and having means for the attachment of another cable, saidclamping members having inclines disposed at different points along thesame, a jump on sleeve in one piece slotted longitudinally to receivethe cable and having inclines at its ends to engage the inclines on theclamping members, and a nut slot-ted to receive the cable and threadedupon the ends of the clamping members and bearing on the clamping sleeveto force the same into place, substantially as described.

4, In combination in a cable socket, a pair or clamping members havinginclines, a sleeve slotted longitudinally and having inclines to engagethe inclines of the clamping members, a slotted clamping nut engagingscrew threaded ends of the clamping members, and are'movable connectionextending from one edge of the slotted clamp to the other and aconnection extending from one edge of the nut to the other,substantially as described.

In combination two clamping members, a sleeve slotted to receive acable, said clamping members and said sleeve having each a pair ofinclines, a slotted nut for holding the sleeve in place, and a removablereinforcing connection extending from one edge of the sleeve to theother at the inclines, substantially as described. Y

6. In combination a pair of clamping members to receive a cable betweenthem, a sleeve to clamp the members in place, and a nut for holding thesleeve in place, one of said clamping members having a hookshapedextension provided with a projection and the other clamping memberhaving an extension with a recess to receive said pro jection, the jointbetween said extensions being at an angle to the radius of thehookshaped member, substantially as described 7. In combination in a'cable socket, a pair of clamping members to engage the cable, saidclamping members having inclines disposed at points spaced apartlongitudinally along the same, and a clamping sleeve havinp inclinedportions to engage the inclines on the clamping members, substantiallyas described. a

In testimony whereof, I afiiX my signature in presence of two witnesses.

wrLLrs GRANT MURRAY.

Witnesses: r

G. E. P'AnsoNs, 'BnNNE'rrS. JONES.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Patents,

' Washington, D. G.

